Calculateur de Investment Return

Calculate absolute and percentage investment return.

Formula and method

This calculator computes Net gain, Return directly in your browser without sending data to an external server.

Mathematical formula

  • Net gain: end-start-contrib
  • Return: (end-start-contrib) ÷ (start+contrib) × 100

Variables and parameters

  • Starting value (start): default value 10000 $.
  • Ending value (end): default value 14500 $.
  • Additional contributions (contrib): default value 1000 $.

Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.

Embed this tool

Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.

Frequently asked questions

What equation and variables does Investment Return Calculator use?

Investment Return Calculator evaluates outputs such as <strong>Net gain, Return</strong> based on inputs including Starting value, Ending value, Additional contributions. Check the Mathematical Method section for the explicit formula.

How can I compare different financial scenarios using Investment Return Calculator?

You can click the "Add to Compare" button after computing your scenario to pin it to your temporary side-by-side Compare Workbench, allowing you to evaluate loan, rate, or interest differences.

What happens if I enter invalid or zero values into Investment Return Calculator?

If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.

Are my calculations in Investment Return Calculator saved or private?

All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.

Is Investment Return Calculator free to use?

Yes. Investment Return Calculator is completely free, has no usage limit, and does not require an account, email, or API key.

Does Investment Return Calculator store or upload my data?

No. Investment Return Calculator calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.

How accurate is Investment Return Calculator?

Investment Return Calculator uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.

Can I embed Investment Return Calculator on my own website?

Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Investment Return Calculator to your own blog post or page.